JP7535129B2 - Bendable gymnastics pole - Google Patents

Description

The present disclosure relates to gymnastics equipment. In particular, the present disclosure relates to flexible gymnastics bars, gymnastics methods, manufacturing methods, and fitness software applications.

Many gymnastics equipment only offers one mode of use that targets a limited area of the body, such as a chin-up bar. These equipment may need to be supplemented with many other gymnastics equipment or routines for a comprehensive workout. Most mechanical gymnastics equipment solutions cannot completely solve the industry's problems because they only allow some adjustment to the user's actuation strength and physique, forcing them to follow the patterns, range of motion, and position of the mechanically moving surrounding equipment.

Existing gymnastics equipment is often not mobile and can only be used when in a specific location, for example requiring a break from exercise routines during vacations and not allowing the option of indoor or outdoor exercise.

What is needed is gymnastics equipment that is simple and elegant in form, blends naturally and gracefully with the human anatomy, is portable, safe to use, and offers a reasonably practical mode of use.

The gymnastics equipment is disclosed as consisting of a flexible pole with spring-like properties that can be used as an aid to support many gymnastics methods, i.e., isotonic, isometric, flexibility, and aerobic gymnastics forms, as well as stretching, self-massage, guided meditation, wireless personal fitness with mobile app integration, remote personal coaching, and integration thereof.

The gymnastics equipment provides support and controlled resistance to the upper limbs, shoulders, back, torso, core, and full body range of motion while helping the person maintain good posture and balance. It has ergonomic grips at both ends and an adjustable cushion can be placed in the middle. The spring constant is provided by a bundle of small diameter elastic rods that can be configured for a person's size, weight, and fitness level for a specific type of use. It is also an Internet of Things (IoT) equipment that can be integrated with fitness apps to help engage users and develop positive fitness habits.

Gymnastics equipment can be incorporated into a variety of artistic and therapeutic movement forms, including, but not limited to, modern dance, group dance, ornaments for rare or competitive sports, children's play, parades and multimedia arts displays, and physical therapy.

Gymnastics equipment can be used in a vast number of locations, including, for example, indoors or outdoors, health clubs, homes, offices, parks, beaches, schools, and doctor's offices. The equipment can be used in physical therapy, occupational therapy, and to help maintain flexibility, focus, and tone before and after certain sports.

The gymnastics equipment can be accessorized with custom decorations, branding images, supporting electronics such as speakers, IOT communications, position and force sensors, haptic feedback, responsive and programmable lighting for user or group entertainment and cues, general creative gymnastics, and remote app and tele-video participation.

The exemplary gymnastics apparatus includes an elastic bendable pole with spring-like properties that can be used for both isotonic and isometric exercises, and aids for stretching and self-massage. Its use provides both support and controlled resistance for upper limb, shoulder, back, torso, and core exercises. It has ergonomic grips at both ends with an adjustable position in its center. The bending force or spring constant can be provided by a variety of force-generating assemblies, including, for example, flexible elastic rods or spring bundles, which can be configured for the user's size, weight, and fitness level for a particular type of use.

A key element of gymnastics equipment is the assembly that provides the characteristic spring force. Exemplary spring or bending force assemblies include flexible rods, spring mechanisms, and other elastic mechanisms. The choice of rod region shape or shape of the core determines whether the bending is more or less constrained to a single plane (square or rectangular/prismatic regions) or in all directions (round regions).

The end grips on both ends of the pole primarily serve to provide an ergonomically appropriate means for the user to grasp and manipulate the instrument, and to protectively cover the rod bundle ends by connecting to an IMU (Inertial Measurement Unit) and/or an outer jacket. The end grips can also serve as housings for batteries, electronics, and sensors, providing additional weight and inertia.

The outer sleeve or spacer provides an outer surface that is held by the user and provides a means to keep the spring force assembly intact and may also act as a protective layer in the event that a rod or other element breaks.

Areas of the gymnastics equipment, such as end grips, middle grips, or the center passageway, can include additional rods or other devices or decorative elements, such as, for example, sensors, lights, wiring, batteries, other electronics, or weights. There is provision for built-in systems within the equipment that provide additional functionality, user feedback, and interactivity. Gymnastics equipment can be integrated with fitness software applications.

The detailed description refers to the accompanying drawings, which show exemplary embodiments.

FIG. 1 illustrates an exemplary embodiment of gymnastics equipment with a bendable pole having spring properties. FIG. 2 illustrates a spacer that may be used in forming the pole portion of the gymnastics apparatus. FIG. 3 shows a bundle of rods that may be used in forming the pole portion of a gymnastics apparatus. FIG. 4 illustrates an exemplary embodiment of a middle grip of a gymnastics apparatus. FIG. 5 illustrates an exemplary intermediate gripper. FIG. 6 shows an exemplary portion of the middle gripper. 7A, 7B, 7C, and 7D show exemplary embodiments of the electronic additive and its components. 8A, 8B, 8C and 8D show gymnastics equipment with a message assembly. FIG. 9 is a block diagram of an exemplary embodiment of electronic components that may be incorporated into gymnastics equipment or that gymnastics equipment may be configured to coordinate. 10A-C are schematic diagrams of a bendable pole portion of a gymnastics apparatus bent to different degrees. 11A-11B show how the bendable poles, and therefore the rods, deform along their lengths relative to one another when the rods are bent. FIG. 12 illustrates a sleeve that can enclose a component of gymnastics equipment. 13A and 13B show an exemplary embodiment of gymnastics apparatus in which the bendable pole has a single rod core. 14A, 14B, 14C, and 14D show an exemplary embodiment of a bendable pole that includes an X-shaped inner core with a strain-relieved central hole surrounded by a tube with an elliptical cross section . 15A, 15B, 15C and 15D show cross sections of a bendable pole. FIG. 16 shows a flex shell with flexible rods. 16A, 16B, 16C, and 16D show flex shells with rods within the core for various core shapes. 17A, 17B, 17C, 17D and 17E show cross-sectional views of bendable poles, each showing a different multi-sided profile and one elongated oval. FIG. 18 shows a cutaway image of a bendable pole showing multiple rods within the bending shell. 19A, 19B, 19C, and 19D show cross-sections of bendable poles with various shaped cores, showing the rods within the core. 20A, 20B and 20C show gymnastics equipment in which the rod 112 is housed within a cassette. FIG. 21 shows a storage/transport bag for transporting disassembled gymnastics equipment. 22A, 22B, 22C, 22D, and 22E show a portion of gymnastics apparatus having a sinusoidal spring within a bendable pole to generate a bending or spring force. 23A, 23B, 23C, 23D, and 23E show a portion of gymnastics apparatus having music wires within a bendable pole to create bending or spring forces. 24A and 24B show textured end grips. FIG. 25 shows an end grip having a sleeve with a multi-sided cross-sectional opening. 26A and 26B show gymnastics equipment that can be separated into two or more pieces for compact storage and transportation. FIG. 27 shows a gymnastics apparatus having a releasably attachable bendable pole having two regions that connect through a flexible tube. FIG. 28 shows a bendable pole having multiple releasably attached regions. 29A and 29B show a gymnastics apparatus having an internal spherical end grip for receiving a ball.

The figures and descriptions provided herein are simplified to show aspects described herein that are relevant to understanding the described apparatus, systems, and methods, but for clarity, exclude other aspects that may be found in typical apparatus, systems, and methods. Those skilled in the art may recognize that other elements or operations may be desirable or necessary to implement the apparatus, systems, and methods described herein. Because such elements and operations are well known in the art and do not facilitate a better understanding of the present disclosure, descriptions of such elements and operations may not be provided herein. However, the present disclosure is deemed to essentially include all such elements, variations, and modifications to the described aspects that may be implemented by those skilled in the art.

1 is a schematic diagram showing the main components of the gymnastics apparatus 100. A bendable pole 102 is provided that may be bendable over its entire length or over a portion of its length. A first end grip 104A and a second end grip 104B are attached to the bendable pole 102 at opposite ends. The first and second end grips 104A, 104B may be grasped by a user to use the gymnastics apparatus 100 to perform various exercises. The gymnastics apparatus 100 may also have an optional intermediate grip 108 located in a central region of the bendable pole 102.

The bendable pole 102 is shown with a number of components that give it the desired bending and elastic properties for use as gymnastics equipment.

Figure 2 shows spacers 110A, 110B, which may be components of the bendable pole 102. More generally, the spacers 110 may function to maintain the generally cylindrical configuration of the bundle of rods 112 over a range of bending. The rods 112 are flexible, elastic rods. An exemplary bundle of rods 112 is shown in Figure 3. In an exemplary embodiment, the spacers 110 are flexible enough to accommodate slight flattening of the bundle of rods 112 in the central region of the bendable pole 102 during bending, but also to permit a consistent and predictable amount of sliding friction between the rods 112 during bending.

The rods 112 can have diameters ranging, for example, from about 0.25 inches to about 5/16 inches. An exemplary rod material is fiberglass reinforced plastic (FRP). For example, a solid material produced by pultrusion having 65% by weight continuous glass roving material and 35% pultrusion composite properties. Exemplary FRP properties measured using the American Standard Test Method (ASTM) include the following:
ASTM D2584 Tensile Strength: ^0.448x103 MPa ( ^65x103 psi)
ASTM D3916/D638 Tensile Modulus: ^0.689x106 MPa ( ^100x106 psi)
ASTM D3916/D638 Flexural Strength: ^0.038x103 MPa ( ^5.5x103 psi)
ASTM D4476/D790 Flexural Modulus: ^0.689x106 MPa ( ^100x106 psi)
ASTM D4476/D790 Compressive Strength: ^0.038x103 MPa ( ^5.5x103 psi)
ASTM D695 60: Barcol hardness ASTM D2583 50
Izod Impact, 84 KNm/ ^m2 (40 ft.-lb./in. ASTM D256)
Specific gravity, ASTM D792 1.9
Density, ^19.099x103 kg/ ^m3 (.069 lbs./in3 ^ASTM D792)
Water absorption, % (weight gain after 24 hours immersion) ASTM D570.10

Exemplary materials for the spacers 110A, 110B and cover elements include polyolefins, nylons, polyurethanes of various durometers, used for the ball ends and ball middles, and PVC polyvinyl chloride, used for the bendable pole 102 cover, as solids in the shear 40-90D range.

In an exemplary embodiment, the bendable pole 102 comprises a spacer 110 configured to hold a plurality of rods 112 spaced apart. The exemplary spacer 110A comprises a solid cylinder having a plurality of passages 114 disposed therethrough and extending the length of the spacer. Such a rod may be a multi-lumen tube having a plurality of passages 114 therein. The rods 112 may be threaded through the passages 114. Each of the plurality of passages 114 may have a rod 112 extending therethrough, or one or more passages may remain empty to accommodate other components, such as, for example, electronics. The one or more passages that accommodate components other than the rods 112 shall be referred to as spacer interior openings 116. The passages 114 may be uniform or may vary in shape and size relative to one another, depending on what is being threaded through the passages 114. Two or more rods or other components may be disposed within a single passage. The spacers 110 can have thin walls, for example, ranging from about 0.010" to about .030", and the spacers 110 can have a non-uniform cross-sectional shape to provide different bending forces when the bendable poles 102 are bent in different directions. Unused passages can include a filler material. In an exemplary embodiment, the spacers 110 have six equally circumferentially distributed passages for the rods 112 and a seventh central passage for electronic or other elements.

Exemplary filler materials include polyurethane, FRP, and spring steel rod filler materials. These may be used to replace the location and volume of one or more rods in the bundle. Exemplary fillers include polyurethane or PVC tubing of equal or nearly equal size to the rods it replaces. The filler material may be easily flexible so as not to contribute to the overall bending strength of the arc during use, but maintain the volume where the FRP rods would otherwise be placed. Replacing the "filler tube material" allows for lighter or heavier arc actuation forces while maintaining the diameter of the bendable pole 102. In other cases, the filler may provide optional decorative and active features by filling the tube with materials such as photoluminescent gels and LED lights, as well as reflective materials such as photoluminescent.

The spacer 110 may also have a configuration shown as portion 110B. The spacer 110B has a cross-sectional profile with a series of concave edges on the exterior of the spacer to accommodate the rods 112. The spacer interior opening 116 may be hollow to accommodate additional rods 112 or other components.

The spacer 110 may be continuous along the length of the bendable pole 102. In an alternative exemplary embodiment, the spacer 110 may include multiple segments. The segments may abut one another or may be strategically spaced along the length of the bendable pole 102 to coordinate with or provide desired characteristics, such as a maximum amount of pole bending, or desired features useful for various exercises. The spacer 110 may comprise segments of uniform length or of various lengths. The length of the spacer 110 segments may also be selected to create or coordinate with desired characteristics, such as a maximum amount of pole bending, or desired features useful for various exercises.

The exemplary embodiment has six flexible rods of equal length in a hexagonal pattern, each rod nominally 5/16" in circular cross section. The bundle includes an open position in the center of the bundle that may or may not include a seventh rod or other structure. Typically the rods may be fiberglass reinforced resin and may be formed as fiberglass reinforced plastic (FRP) pultrusions. The overall length of the rod bundle is variable depending on the arm length of the user and may typically range from 36" to 72" or more. In the exemplary embodiment the length is determined at the time of manufacture and is not user adjustable, however, in alternative embodiments the user includes a means to variably configure one device to adjust to a range of lengths. The ability of the rods 112 to bend sufficiently without splitting and cracking is possible due to a combination of limiting the diameter of the rods, selecting appropriate materials, and ensuring quality control of the rod composition and manufacturing process.

The lubrication required for the rods to slide freely may be provided by the properties of the rod material (i.e., low friction) or the spacer material, or additional lubricant may be applied to the interior surface of the spacer or rod. For example, the rods may be coated with PTFE, and the FRP rods in a group slide against each other with a coating of silicone gel applied during the assembly process.

Figure 4 shows an exemplary embodiment of the intermediate gripping portion 108 disposed on the bendable pole 102. The intermediate gripping portion 108 can serve multiple functions. It may be used as an additional user contact or gripping portion. It may also provide comfortable cushioning at the apex of the bend of the equipment for exercises where that portion of the gymnastics equipment 100 is in contact with the user's body, such as the upper back or neck. The intermediate gripping portion 108 can also act as a positioning function on the user's back and neck to allow the user to precisely position the gymnastics equipment 100 for various exercises. In addition, the intermediate gripping portion 108 may act as an acupressure massage function.

An exemplary gripping portion material is a polyurethane one-piece skin foam molded ball and wand cover. The bendable pole 102 can include a cover. Some portions of the bendable wand cover can be solid but flexible polyurethane 40-80 durometer, while other bendable wand covers can be closed cell polyurethane foam. The cover can provide one or more of the following properties: waterproof, non-absorbent, and resistant to UV rays, cleaners, and body oils.

In an exemplary embodiment, the intermediate gripper 108 includes a ball-like configuration of approximately 50.8 mm (2 inches) constructed from high density foam rubber or integral skin urethane molding, with an exemplary range of ball diameters being approximately 38.1 mm (1.5 inches) to approximately 63.5 mm (2.5 inches). The intermediate gripper 108 may be a single element having two ball-like shapes at a set distance, or may consist of two identical elements in a mirror orientation that may be slidably positioned over a range of distances. In a further embodiment, the intermediate gripper 108 includes two identical elements in a mirror orientation with an intermediate gripper bendable pole portion 124 between them. The intermediate gripper bendable pole portion 124 may be a separate component where the intermediate gripper ends 126A, 126B are located, or may be a central portion of the bendable pole 102. If a separate portion, it is flexible to allow bending with portions of the bendable pole 102 located on either side of the intermediate gripper ends 126A, 126B. Each portion of the intermediate gripper 108 may have any shape that aids in performing any or all of the functions mentioned herein.

The intermediate gripper 108 may be adjustably attached to the bendable pole 102 or may be fixedly attached thereto. In the exemplary embodiment as shown in Figs. 1, 5 and 10, the intermediate gripper 108 comprises an intermediate gripper tubular portion 124 configured to have the bendable pole 102 extending therethrough, the intermediate gripper tubular portion 124 having a first end and a second end. The intermediate gripper tubular portion 124 has intermediate gripper ends 126A, 126B disposed at the first and second ends of the intermediate gripper tubular portion 124, respectively. Alternatively, components similar to the gripper ends 126A, 126B may be disposed along the bendable pole 102 without a connecting tubular portion. The tubular portion 124 may have a circular cross-sectional profile or other shape. The tubular portion 124 may be configured to have the bendable pole 102 extending therethrough, or it may be a separate bendable portion of the gymnastics apparatus 100, 400, 500 attached to the gripping ends 126A, 126B.

FIG. 6 depicts an exemplary portion of an intermediate grip 108 that may be an individual element of gymnastics apparatus 100, rather than one end of a continuous intermediate grip 108 as shown in FIG. 4. Each intermediate grip 108 shown in FIG. 6 has an intermediate grip tubular portion 124 or sleeve and an intermediate grip end 126. Each intermediate grip 108 shown in FIG. 6 is designed to accommodate bendable poles 102 having different cross-sectional profiles. Each intermediate grip end 126 has a different shaped opening 178. For example, image A1 has a triangular opening 178, image B1 has a square opening 178, image C1 has a five-sided opening 178, and image D1 has a six-sided opening 178. The opening 178 may have a lip 182 to provide a transition from the intermediate grip end 126 to the bendable pole 102. The intermediate grip tubular portion 124 can have an opening 180 that is the same shape as the opening 178 at the intermediate grip end 126. The openings 178, 180 can have other shapes, for example, circular or oval. The particular moldable material need not have the particular shape of the bendable pole 102, so long as the material allows for adequate bonding of the intermediate grip 108 to the bendable pole 102.

Images A1, B1, C1, D1 show a spherical intermediate gripping end 126. Images A2, B2, C2, D2 show a spherical end. Other shapes may be used as long as they are compatible with the use of the gymnastics apparatus 100. Exemplary end views of the intermediate gripping portion 108 taken from the end of the intermediate gripping end 126 are shown as images E1, F1. Exemplary end views of the intermediate gripping portion 108 taken from the end of the intermediate gripping tubular portion 124 are shown as images E2, F2. Images E1, E2 show an intermediate gripping portion 108 having a rounded intermediate gripping end 126. Images F1, F2 show an intermediate gripping portion 108 having an elongated or non-spherical intermediate gripping end 126.

This may be applied for decorative purposes or to provide a tactile cue for hand positioning. The first intermediate grip end 126A and the second intermediate grip end 126B may be constructed from textured polyurethane and integral skin molded foam.

24A, 24B, and 25 depict an exemplary embodiment of the end grip 104 including a grip 120 configured to be held in the hand of a user and a grip sleeve 122 configured to accommodate insertion of the bendable pole 102. The grip sleeve 122 may be removable from the bendable pole 102, such as by threaded engagement. Alternatively, the grip sleeve 122 may be fixedly attached to the bendable pole 102. The bendable pole may also extend into the end grip 104 and be secured to the end grip, either removable or fixed, by other means that provide a secure attachment that is sufficiently secure to withstand normal use of the gymnastics apparatus 100. As shown in FIGS. 24A and 24B, the surface of the end grip 104 may be smooth or textured. FIG. 24A shows an end grip 104 with ridges for gripping or hand orientation. FIG. 24B shows end grip 104 with embossed or overmolded elements 128. This may be applied for decorative purposes or to provide tactile cues for hand positioning. End grip 120 is shown as spherical in FIG. 24, but could have other shapes that are compatible with different gymnastics, different users, or different features of gymnastics apparatus 100. For example, if a bendable pole is designed to exhibit different forces depending on which direction it is bent, end grip 120 could be shaped to help users determine how to orient gymnastics apparatus 100 in their hands to obtain a desired force profile.

Images A-D of FIG. 25 show exemplary openings 182 in the gripper sleeve 122. Image A shows a triangular opening 182 for accommodating a bendable pole 102 having a triangular cross-section. Image B shows a square opening 182 for accommodating a bendable pole 102 having a square cross-section. Image C shows a five-sided opening 182 for accommodating a bendable pole 102 having a five-sided cross-section. Image D shows a six-sided opening 182 for accommodating a bendable pole 102 having a six-sided cross-section. The openings 182 can have other shapes to coordinate with other cross-sectional profiles of the bendable pole 102.

The bendable pole 102 may also have a walking stick style wrist loop or a trim fitting handle with a shovel handle style at the end.

As shown in FIGS. 29A and 29B, the gymnastics apparatus 100 may include end grips 104A, 104B that are internally spherically shaped to accommodate balls 144A, 144B. The balls 144A, 144B may be replaceable and may include, for example, impact activated flashing lighted balls that fit within sockets 146A, 146B of the end grips 104A, 104B. The balls 144A, 144B may be glued to the end grip sockets 146A, 146B with, for example, vinyl cement, rubber cement, or silicone rubber cement. The balls may also be permanently attached with other adhesives or attachment mechanisms, provided the connection is durable enough to withstand normal use of the gymnastics apparatus. Exemplary diameters of the balls 144A, 144B include 2.4 inches and smaller sizes up to 1.5 inches. Balls 144A and 144B may be made of sponge rubber and may be non-illuminated.

The bendable pole 102 may be hollow and transparent and may hold sparkling liquid and falling glitter as well as a light collecting liquid that glows in the dark. The bendable pole 102 may also contain an internal glitter and glow non-toxic liquid that may be contained in the balls 144A, 144B.

In an exemplary embodiment, one or more of the ends 126A, 126B of the middle grip 108 or end grip 104 are configured to accommodate electronic components such as lighting, batteries, a control board (PCB), a wire harness, and/or audio and/or sensors. The sensors can provide, for example, one or more of health related data, exercise and position information, calories burned, and other exercise related information. The electronics and other electronics disclosed throughout may be incorporated into any component as mentioned and may include any of the identified components even if not mentioned herein with respect to a particular gymnastics apparatus piece.

Electronic components or assemblies ("electronic appendages") may be strapped on, clipped on, or integrated into the middle grip 108 or adjacent thereto, or a combination thereof. Electronic components or assemblies may also be housed within the end grips. Electronic appendages may have tactile feedback or lighting. Electronic appendages may include batteries and controls. Portions of the electronic appendages may be incorporated into or on the gymnastics equipment, or may exist separately from the gymnastics equipment and communicate wirelessly or by hardwire to electronic add-ons incorporated into or on the gymnastics equipment. In an exemplary embodiment, the electronic appendages measure the amount of exercise and peak actuation force, for example, via strain sensors that generate signals proportional to the amount of deflection of the primary arcuate bending action. Such components may require mechanical integration and actuation of the components.

In an exemplary embodiment, to measure the user's exercise volume and peak working force, a conductive plastic material, such as that commercially available under the name Velostat® or known as Linqstat, is integrated into the first or second end grip 104A, 104B of the bendable pole 102, where mechanical force on the first or second end grip 104A, 104B or the end of the bendable pole 102 can be converted into a variable voltage and then converted into a Bluetooth® signal that is transmitted to a Bluetooth® transmitting unit. Alternatively, the signal can be transferred by hard wiring to a display and any other intermediate electronic components or storage media required to convert the signal into a displayed quantity or representation. The conductive plastic material is pressure sensitive, so that squeezing or crushing the conductive plastic material reduces the electrical resistance. The electrical resistance reduction is converted into an electronic signal that represents the amount of work working force applied by the user. In an exemplary embodiment, carbon impregnated sheet plastic or polymer foil (polyolefin) that is impregnated with carbon black to make it conductive is used. The conductive material creates a variable but proportional resistance that can be converted into a proportional Bluetooth signal and sent to electronics for processing and display. For example, the signal may be sent to a user's smartphone with a software application ("app") downloaded. The app converts the signal into an equivalent of bending force by incorporating the model type and size. Each user-sensor pairing may be unique. This allows the app to programmatically calibrate the actuation force to the instrument in use and the associated smart app, which can track the user work in many ways, including maximum actuation force, time per cycle, average, total time, repetition, as well as additional features for haptic feedback and acceleration sensing, each incorporated into the Bluetooth source. The signal changes and the time between changes are integrated into the calculation, resulting in factors that represent the amount of work accomplished, the amount of deflection of the rod, and the amount of time between the change in displacement of the rod from a straight or bent position and back again. These factors, once calculated, produce a measure of work done.

Figures 7A, 7B, 7C, and 7D show exemplary embodiments of the electronic accessory and its components. Figure 7A is an exemplary gymnastics apparatus 100 without the first end grip 104A. Figure 7A shows a cross section 7B-7B through a portion of the bendable pole 102 where the first end grip 104A is located. Figure 7B is a cross section through 7B-7B. Figure 7C identifies a portion of the gymnastics apparatus 100 that is enlarged in Figure 7D.

7B shows the core 172 around which the pressure sensitive material 214 is disposed, either directly or with one or more intervening layers. The pressure sensitive material 214 may completely surround the core 172 or may be strategically placed on one or more portions. By "strategically placed" we mean positioned so as to sense pressure and generate a signal reflective of the user's actuation force or other activity or quantity being monitored. A signal converter 216 for converting a signal generated by pressure on the pressure sensitive material 214 is located at or near the end of the bendable pole 102. The signal converter 216 is electrically connected to a Bluetooth or other wireless transmitter 218. The signal converter 216 and transmitter 218 may be housed within the end grip 104, for example, within the grip 120. The intermediate grip portion and other bendable rod portions may also house electronic components.

The sensors are generally positioned on the gymnastics apparatus 100 in locations that facilitate sensing the pressure or other quantity to be measured. Other electronic components or assemblies are positioned where they do not interfere with the use of the gymnastics apparatus and are positioned as necessary relative to other components or assemblies with which they operate in cooperation.

8A, 8B, 8C, and 8D show gymnastics apparatus 100 with massage assemblies. FIG. 8A shows gymnastics apparatus 100 with end grips 104A, 104B. FIG. 8B shows either end grip 104A, 104B. Note that massage assemblies may be incorporated into either or both end grips 104A, 104B. Additionally or alternatively, intermediate grip 108 may house one or more massage assemblies. FIG. 8B shows a section line 8C-8C through end grip 104. Lines 8C-8C extend through grip sleeve 122 and end grip 120. FIG. 8C shows a section through line 8C-8C. An electric gear motor 222 with eccentric lobes induces vibrations that are concentrated in end grip 120. A battery housing or pack 220 is also located in or on end grip 104. A battery, e.g., a rechargeable battery, housed in battery housing 220 powers motor 222. Any type of motor or combination of motors and other components capable of producing a comfortable level of vibration and compatible with gymnastics apparatus 100 may be used.

FIG. 8D is an exploded view of the end grip 104. It shows the end grip 120, gripper sleeve 122, motor 222, and battery pack 220. Set screws 224 are shown on the end grip 104 for securing the end grip 104 to the bendable pole 102.

Exemplary lengths of gymnastics equipment having a motorized massage assembly include 36 inches and 24 inches, although other lengths may be used. Additional components of gymnastics equipment 100 described above, such as comfort cover 156, and various rod and core configurations, may be incorporated into gymnastics equipment that includes a motorized massage assembly.

Furthermore, it should be noted that the sensor measurements may be obtained by a sensor incorporated into a wearable item such as a glove. Instead of the sensor portion of the measurement device being incorporated into or attached to the gymnastics equipment, the sensor may be provided in a separate item configured such that the user's exercise volume and peak actuation force may be measured through pressure applied by the user. In this embodiment, the complete electronic appendage may be separate from all or part of the gymnastics equipment.

9 is a block diagram of an exemplary embodiment of electronic components that may be incorporated into or configured for use with the gymnastics equipment 100. The computing device 200 is housed in whole or in part within the gymnastics equipment 100 and includes a storage device, which may be a single memory device or multiple devices for storing executable code for implementing, for example, gymnastics-related methods, algorithms, monitoring, audio, visual effects, or any portion of the fitness app functionality. Also included in the storage device 202 may be stored data, for example, gymnastics-related data. The gymnastics-related data may include, for example, history of health statistics such as heart rate, blood pressure, gymnastics routine history, range of motion, and/or visual effects or audio repository. One or more processors 204 are coupled to the storage device 202 by a data interface 206. The processor 204 may be any device configured to perform one or more applications and analyze and process data according to an embodiment of the gymnastics equipment or method. The processor 204 may be a single processor or multiple processors operating individually or together. The processor 204 may be, for example, a microprocessor, an application specific processor, or other device capable of processing and transforming electronic data. The processor 204 executes instructions stored in the storage device 202. The storage device 202 may be integrated with the processor 204 or may be a separate device. Exemplary types and characteristics of the storage device 202 include volatile and/or non-volatile memory. Various types of memory may be used, provided the type is compatible with the system and its capabilities. Exemplary examples of memory types include, but are not limited to, various types of random access memory, static random access memory, read-only memory, magnetic disk storage devices, optical storage media, and flash memory devices.

Input/output devices 208 are coupled to the data interface 206. The input/output devices 208 may include, for example, sensors, image capture devices, data input devices, displays, lights, and speakers. A network interface 210 is also shown coupled to the data interface 206, which may couple the computing device components to a private or public network 212.

The one or more electronic components may be wirelessly connected to each other. One or more of the electronic components may be housed in or on various portions of the gymnastics apparatus 100, such as the bendable pole 102, the end grips 104, or the middle grips 110. Figures 8A, 8B, 8C, and 8D show exemplary embodiments of electronic components in the end grips. The electronic components may also be attached to the gymnastics apparatus 100 in other ways. The computer system shown in Figure 9 may include a downloadable fitness app or other app to provide functionality and a user interface to implement desired methods, monitoring, or other gymnastics related functions.

Figures 10A-C are schematic diagrams of a bendable pole 102 bent at different angles. Figure 10A shows an exemplary 60 inch long bendable pole 102 with its ends bent 36 inches apart. In an exemplary embodiment, the bendable pole 102 is formed from a 5/16 inch diameter FRP fiberglass reinforced plastic rod, creating approximately 8 pounds of surface tension between the ends of the bendable pole 102.

FIG. 10B shows an exemplary 60 inch long bendable pole 102 with its ends bent 24 inches apart. In an exemplary embodiment, the bendable pole 102 is formed from a 5/16 inch diameter FRP fiberglass reinforced plastic rod, creating approximately 10 pounds of surface tension between the ends of the bendable pole 102.

FIG. 10C shows an exemplary 60 inch long bendable pole 102 with its ends bent 3 inches apart. In an exemplary embodiment, the bendable pole 102 is formed from a 5/16 inch diameter FRP fiberglass reinforced plastic rod, creating approximately 11 pounds of surface tension between the ends of the bendable pole 102.

The force between the bendable pole ends is cumulative according to the number of rods 112 included in the bendable pole 112. For example, a three rod bendable pole 102 can generate a surface tension of approximately 30 pounds when the bendable pole ends are 24 inches apart. A four rod bendable pole 102 can generate a surface tension of approximately 40 pounds when the bendable pole ends are 24 inches apart. A five rod bendable pole 102 can generate a surface tension of approximately 50 pounds when the bendable pole ends are 24 inches apart. A six rod bendable pole 102 can generate a surface tension of approximately 60 pounds when the bendable pole ends are 24 inches apart. A seven rod bendable pole 102 can generate a surface tension of approximately 70 pounds when the bendable pole ends are 24 inches apart. An eight rod bendable pole 102 can generate a surface tension of approximately 80 pounds when the bendable pole ends are 24 inches apart. Higher forces can be achieved by adding metal spring rods to the hollow core areas at the bends and adding larger diameter FRP rods.

Rods 112 larger than 5/16 inch diameter require special FRP formulations to increase the flexibility of the rods 112 bent 3 inches point-to-point without breaking. The larger rods 112 can achieve the bending endurance required to reach 3 inches point-to-point performance standards with a lower proportional total actuation force compared to standard FRP at 5/16 inch.

11A-B show how the rods 112 are displaced along their length relative to one another when the bendable pole 102, and therefore the rods 112, are bent. The rods 112 slide relative to one another, so that the bendable pole ends that were aligned with one another when the bendable pole 102 was straight now have tip positions that change relative to one another. This is shown in FIG. 11A and emphasized in FIG. 11B by showing a close-up of the ends of the rods 112. If the rods 112 are disposed within or around the spacers 110 or other intermediate elements, the rods 112 will slide against or against the spacers 110. If the rods 112 are not spaced apart by spacers or otherwise abutting one another, they will slide against one another. The minimum possible degree of sliding allows the bendable poles 102 to bend to the desired degree without adversely affecting the integrity of the gymnastics apparatus 100, particularly the connections between the bendable poles 102 and the end grips 104 or intermediate grips 108. This connection may be, for example, between the bendable pole 102 and the gripper sleeve 122, or, if no gripper sleeve is present, between the bendable pole 102 and the end grip 120. The rod 112 may maintain engagement with the first end grip 104 and the intermediate grip 108, either directly or indirectly through intervening components or materials, as the bendable pole 102 is bent into an arc shape.

Exemplary core diameters include 1 5/16 inches, 2 3/8 inches, 3 7/16 inches, and 4 1/2 inches. In an exemplary embodiment, the core diameter and appropriate FRP formulation are selected to exhibit a 60" x 3" two-point non-breakage, fracture resistance standard, and non-fatigue resilience to withstand normal use.

A full or partial polyurethane or neoprene grip foam slide-on cover on all covers may be placed around the bendable pole 102.

The overall bar length of the gymnastics apparatus 100 may range, for example, from 24 inches to 72 inches. Lengths from 48 inches to 72 inches are more suitable for adults or stronger, taller users. Lengths in the range of 24 inches to 48 inches, with a smaller force range and higher resilience and safety features, are generally more suitable for children.

Gymnastics apparatus 100 may be configured so that bending is directional. This may be the result of or may be achieved by the distribution of rods 112 in or around spacers, rod cross-sectional shapes, or other factors. Gymnastics apparatus 100 may also be configured to bend uniformly in any direction.

The bendable pole 102 may include, for example, a shrinkable flexible plastic layer that may be used for branding or other labeling. FIG. 12 shows a sleeve 118 that may encase one or more rods 112. One or more spacers 110, or other elements positioned along the bendable pole 102, may also be encapsulated within the sleeve 118. The sleeve 118 may be constructed of heat shrink and/or braided mesh material, and/or other mesh material. Incorporating a sleeve into the bendable pole 102 may provide a surface onto which text or designs may be adhered or printed. This may include, for example, branding, advertising, instructions for use of the gymnastics equipment, warnings, or any other informational, decorative, or identifying material. Exemplary materials for the sleeve 118 include three types: (1) clear PVC heat shrink process applied flexible tubing; (2) 40-80 durometer overmolded polyurethane, including solid color or clear, for example, applied in a mold via injection molding; and (3) for example, 1/8 inch thick polyurethane or neoprene closed cell comfort foam cover.

A PVC heat shrink flexible tube can cover the decorative layer, where pre-printed custom techniques and logos can be applied and protected from wear and tear by the final outer PVC heat shrink layer. A safety layer of polyethylene terephthalate (PET) braided mesh, which may be decorative, can help cover and contain the main bending rod 112 and protect against FRP fracture and crack protrusion in the event of rod fracture due to accident or misuse. The combination of the braided PET mesh cover and clear heat shrink layer can support all of the gymnastics equipment force components and contain them in the event of catastrophic failure while keeping all of the FRP contained. These features can also be achieved through the use of injection molded polyurethane.

In an exemplary embodiment, the first end grip 104A and the second end grip 104B may comprise one or more of the following materials: textured polyurethane and integrated skin molded foam. The first end grip 104A and the second end grip 104B may be identical to one another, as shown in FIG. 1, or may have different configurations.

The first and second end grips 104A, 104B may be glued to the bendable pole 102 or may be removably attached thereto. For example, the first and second end grips 104A, 104B may be formed of flexible, tight-fitting polyurethane that stays on the bendable pole 102 by a combination of mechanical interference on small circumferential bumps on the ends of the pole, and by adhesion between the polyurethane of the end grips 104A, 104B and PVC heat shrink or injection molded polyurethane.

The first end grip 104A and/or the second end grip 104B may have a hollow interior region configured to house, for example, electronic components such as sensors, lights, or audio components. The first end grip 104A and the second end grip 104B may also include weights within the hollow interior region, for example. The weights may be incorporated into the first end grip 104A and the second end grip 104B as permanent parts or may be removable. Multiple weights may comprise the gymnastics apparatus 100 and be selectively added or removed from the gymnastics apparatus 100, particularly if the first end grip 104A and the second end grip 104B are removable. The first end grip 104A and the second end grip 104B themselves may function as replaceable weights. Cushioned end grips with soft outer surfaces may allow for weighted ends without compromising safety features.

In an exemplary embodiment, the weights are attached to the gymnastics apparatus 100 and are weighted foam segment covers that are stretch fabric covers with flexible heavy metal rubber composites wrapped around the poles 102, resulting in several pounds per side of the gymnastics apparatus 100. The added weight during exercise can have a substantial dynamic effect during a gymnastics program, similar to weighting the ankles in step aerobics, but without the added bending arc force. Additionally, hollow core models have the option of adding additional metal spring rods to the hollow central core of certain models with larger hollow cores, for example, up to 12 each, 1/8 inch diameter steel rods, can add up to approximately 3 pounds total and have significant bending arc forces.

The gymnastics apparatus 100 can be configured to provide a particular spring force, such as by the materials used, the length of the bendable pole 102, the diameter or cross-sectional size and shape of the bendable pole 102, and the type and configuration of spacers. In an exemplary embodiment, the length of the gymnastics apparatus 100 ranges from about 3.0 feet to 6.5 feet. In an exemplary embodiment, the diameter of the bendable pole 102 ranges from 3/16 inches to about 5/16 inches. In an exemplary embodiment, the force/bending moment/spring constant/resistance about the center point can range from about 3 to 10 pounds of force against end deflection per rod element of 60 inches and 24 inches in length.

The force of the rods acts collectively and varies with the diameter and length of the rods. For example, a rod with an overall length of 60 inches and six force rods with 5/16 inch diameter per rod in a rod assembly will generate approximately 60 pounds of force when the ball ends are deflected to within 24 inches of the U-shape. A single 60 inch long 5/16 inch rod can generate approximately 10 pounds of force when fully deflected. Rods with other diameters and lengths will generate proportionally more or less force than a 24 inch deflection and 60 inch length.

13A-B show an exemplary embodiment of gymnastics apparatus 100 in which bendable pole 102 has a single rod core 302. FIG. 13A shows an exemplary gymnastics apparatus 100 that may include a single rod core 302, and FIG. 13B shows a cross-sectional view taken at line 13-13. Bendable pole 102 includes a tube 304 that includes PVC or other thermoplastic polymer. Tube 302 has a spiral wire reinforcement layer 308 as a safety containment to protect the user from injury in the event of FRP failure due to misuse or accident. A foam outer layer 306 is disposed around tube 304. Foam outer layer 306 may include, for example, medium density polyurethane or neoprene closed cell foam and may have a wall thickness of 3 1/8 inches. The embodiment shown in FIG. 13A, as well as other embodiments described herein, may have removable/replaceable end grips 104A, 104B, a removable/replaceable middle grip 108, and an adjustable middle grip 108.

Figures 14A, 14B, 14C, and 14D show a further exemplary embodiment having an X-shaped core 148 with a central strain relief hole 152 that helps reduce internal stresses and prevent glass fiber fracture under larger bending angles. Figures 14A, 14B, 14C, and 14D show how the X-shaped core 148 deforms upon bending of the bendable pole 102. The X -shaped core 148 and adjacent components are within the bendable pole 102. Figures 14A, 14B, 14C, and 14D are cross-sectional views of a gymnastics equipment pole.

FIG. 14A shows a cross section of the X-shaped core 148 within the tube 150 when the bendable pole 102 is unbent. The tube 150 in this exemplary embodiment has an oval cross section. When the bendable pole 102 is in an unbent position, the X-shaped core 148 is elongated in a "north-south" direction, as indicated by the arrow in FIG. 14B. The tube 150 deforms as the X-shaped core 148 does. The terms "north-south" and "east-west" as used herein are merely to identify relative directions and do not bear any other relationship to location or direction. FIG. 14B shows the X -shaped core 148 when the bendable pole 102 is bent in a first direction, indicated as "north-south" and indicated by the arrow in FIG. 14B. When bent in the north-south direction, the X-shaped core 148 is less elongated than when in the unbent position. FIG. 14C shows the bendable pole 102 bent in an east-west direction, as indicated by the arrow in FIG. 14C. The X- core 148 is elongated when bent in an east-west direction than when in an unbent position or when bent in a north-south direction.

The X- core 148 may be constructed from, for example, FRP pultrusion material, or other fiber reinforced plastic. In an exemplary embodiment, the X- core 148 has a central strain relieved hole 152 with a diametral strain of 1/8 inch over the length of the core. The bendable pole 102 with the X- core 148 may be, for example, a polyurethane overmolded or coextruded X-cover bendable pole.

The small and large diameter X-shaped cores 148 can bend at any 360° rotational position of the bendable pole 102. The performance of the bendable pole 102 favors bending along the East-West direction (FIG. 14C) because the larger surface naturally lies over one shoulder more easily. This East-West bending produces a lighter actuation force because the X-shape flattens out and has a shorter cross-sectional bend for a smaller profile. Conversely, when the bendable pole 102 bends against the North-South direction of the larger profile, the larger vertical profile resists bending to a greater extent.

The X-shape of the inner core 148 can be defined by the distance between the top and bottom head pairs (L1) and the left and right side pairs (L2), as further described below. When L1 and L2 are equal, the main bending arc forces generate equal and symmetrical forces. When L1 and L2 are different lengths, the main bending arc forces become asymmetrical, providing a range of greater or lesser actuation forces in the bending arc depending on the rotation of the end grips relative to the user's grip.

14D shows further details of the cross section of the bendable pole 102 having an X-shaped core 148. In an exemplary embodiment, an outer X-shaped core cover 154 may be formed over the X-shaped core 148 by a co-extrusion or molding process. In an exemplary embodiment, the X-shaped core cover 154 is constructed of polyurethane and has a hardness density of 30-80 Shear A Durometer. The outer X-shaped core cover 154 may be opaque or transparent.

A comfort cover 156, such as a closed cell medium density foam, may be disposed around the X-shaped core cover 154. An exemplary material is polyurethane. The comfort cover 156 may be in the form of a tube having a wall thickness of, for example, about 2.54 mm (0.1 inch) that surrounds the X-shaped core 148. The comfort cover 156 may extend the entire length of the bendable pole 102 or a portion of its length. The gymnastics apparatus 100 may also be configured without the comfort cover 156.

The minor and major diameters of the bendable pole 102 when it is in the extended position, without the comfort cover 156, are shown in FIG. 14D as dimensions B and A, respectively. The X-shape of the X-core 148 is defined by the distance between the upper head pair 160A, 160B and the lower head pair 160C, 160D, and the distance between the left side pair 162A, 162B and the right side pair 162C, 162D. When the lengths are equal, the primary arc bending action produces substantially equal and symmetrical forces. When the pairs are of different lengths, the primary arc bending action forces become asymmetrical, providing a greater or lesser range of actuation force during the arc bending action, depending on the gauge of the bendable pole 102 and the rotation of the end of the gripping portion 120 relative to the user's grip. Example gauges in inches include:

The combination of the gauge size of the bendable pole 102, the X-shaped core 148 gauge, and the hardness of the co-extruded polyurethane or other integral cover in a range of durometers produces a wide range of bar actuation forces from light to heavy loads. The gauge size and actuation force range in 0.5 inch (12.7 mm) increments and the overall length of the bendable pole 102 can cover a very wide range of people with comfortable fit and gymnastics compatibility.

Figure 15A shows an exemplary gymnastics apparatus 100 with a cross section shown through 15-15 of a bendable pole 102. Figures 15B, 15C, and 15D show different embodiments of cross section 15-15. Figure 15B shows cross section 15-15 of a bendable pole 102 with a hollow core 164. A flex shell 166 surrounds the hollow core 164. A comfort cover 156 is disposed around the flex shell 166.

The shape of the flex shell 166 is defined by dimensions A and B. When equal, the flex shell 166 is circular and the bending action through the main arc creates substantially equal and symmetrical forces.

As with the exemplary embodiment shown in Figures 14A-14D, when dimensions A and B are different lengths, the primary bending arc force becomes asymmetric, providing a greater or lesser range of actuation force in the bending arc depending on the gripper 120 and the user's rotation relative to the gripper. The ratio of L1 to L2 adjusts for greater or lesser asymmetric primary bending arc force as the overall profile size and wall thickness adjust.

The hollow core 164 allows for the deformation of the elliptical profile of the flex shell 166 during the bending cycle. This allows for the full bending range of the bendable pole 102 from the first end grip 104A to the second end grip 104B. The relatively large elliptical hollow core 164 profile creates a smaller bending arc force when bending across its cross-sectional length. Bending parallel to the long length creates a larger bending arc force. The hollow core 164 may be filled with springs, such as small diameter (e.g., about 1/8 inch) steel springs, to provide additional performance features. Additionally or alternatively, the hollow core 164 may house the rod 112 to add weight and increase bending arc force without building high internal stresses that would result in rod failure. As noted elsewhere, the rod 112 may include, for example, an FPR.

The combination of technical features, namely the flex shell 166, metal spring filler, and generous deformation tolerances, can ensure that long-term fatigue-free performance is delivered reliably.

The "zero" or elliptical shape as shown in FIG. 15B provides as much as a 50% difference in primary bending arc force by simply rotating the bendable pole 102 within the user's normal grip. There is no need to reset or adjust any feature of the gymnastics apparatus 100 to accommodate a wide range of bending effort force differences.

Example dimensions of a bendable pole 102 having an elliptical zero-shaped hollow core 164 include:

15C shows a cross section of a further embodiment of the bendable pole 102. The hollow core 168 has a less pronounced elliptical shape, referred to as an "Easter egg" shape, as opposed to the hollow core 164 "zero" shape. Thus, the actuation force differential is less for the Easter egg hollow core 168 than for the zero hollow core 164. With the less extreme, more rounded shape, there is a smaller actuation force differential of about 25%.

Example dimensions for a bendable pole 102 having an elliptical Easter egg shaped hollow core 168 are as follows:

Figure 15D shows a cross section of the bendable pole 102 showing an elongated hollow core 170 with a rounded outer flex shell 166. This configuration provides a more symmetrical surface feel to the user compared to the configurations shown in Figures 15B and 15C. However, by adjusting the shape of the elongated hollow core 170, an asymmetry is introduced into the bending force depending on the orientation of the user's grip on the first and second end grips 104A, 104B.

The elongated hollow core 170 is defined by a width B and a length C. The flex shell 166 has a diameter A. The greater the difference between the width B and the length C, the greater the actuation force differential. Effort differential applies to all hollow core and flex shell methods by introducing an asymmetry in the primary bending action arc force. Asymmetry is not always a desirable feature for users. It is different from a circular profile with symmetrically proportioned and concentrically arranged internal features that produce one-sided performance regardless of the position of the bendable pole 102 or the user's grip.

Example dimensions of a bendable pole 102 with a round hollow core 170 include:

FIG. 16 shows an exemplary embodiment of a flex shell 166 with rods 112 within a core 172. The core 172 may be one of the configurations shown in FIGS. 16A , 16B, 16C, 16D, including an X-shaped core 148, a zero-shaped hollow core 164, an Easter egg-shaped hollow core 168, and an elongated hollow core 170, or any core shape, respectively. The number 172 is used herein as a general core and encompasses other shaped cores. The rods 112 can add weight and additional bending actuation forces to the hollow core and hollow bendable pole embodiments. In an exemplary embodiment, the zero-shaped hollow core 164 and the Easter egg-shaped hollow core 168 can be filled with small diameter (e.g., 1/8 inch) rods 112, which can be made of, for example, spring steel and/or FRP. The hollow bendable pole 102 can accommodate the smaller diameter rods 112 in its construction.

The X-shaped core 148 can be added inside the Easter egg core 168 or the zero shaped hollow core 164. The X-shaped core 148 can accentuate the actuation force difference experienced by the user, for example, by simply rotating the bendable pole 102 90 degrees in the user's grip on the end grips 104A, 104B. As there are no switches or levers or dials to engage or manipulate, no adjustment of the tool is required, only a change in the position of the bendable pole 102 in the user's grip.

The addition of the rod 112 increases the actuation force without increasing the internal stress on the bendable bar 102 or flex shell 166, thus preventing the build-up of internal stresses that can lead to failure of materials such as FRP in extreme bending applications. The added weight may be from 0.45 kg (1 lb) to several pounds, but the added weight moves dynamically during exercises and actions, and a little extra weight can have a substantial impact on the overall feel and user experience.

Figure 17A shows gymnastics apparatus 100 with a section line through bendable pole 102 designated as 17-17. Figures 17B, 17C, 17D, and 17E show different embodiments of sections through line 17-17. Each section through line 17-17 shows a different multi-sided profile rather than being circular. Figure 17B shows bendable bar 102 with a six-sided flex shell 166. Six-sided flex shell 166 has a comfort cover 156 with the shape of six-sided flex shell 166.

FIG. 17C shows a bendable bar 102 having a five-sided flex shell 166. The five-sided flex shell 166 has a comfort cover 156 in the shape of the five-sided flex shell 166.

FIG. 17D shows a bendable bar 102 having a four-sided flex shell 166. The four-sided flex shell 166 has a comfort cover 156 in the shape of the four-sided flex shell 166.

FIG. 17E shows a bendable pole 102 having a three-sided flex shell 166. The three-sided flex shell 166 has a comfort cover 156 in the shape of the three-sided flex shell 166.

The comfort cover 156 may take the shape of the exterior surface of the flex shell 156, but may not be as angular as the flex shell 156 due to the nature of its material, such as closed cell polyurethane foam.

Various cores 172 as described herein may be incorporated into the multi-sided bendable bar 102. These variations in core and flex shell geometry can result in actuation force differentials in the primary arcuate bending action.

FIG. 18 shows a cutaway image of the bendable pole 102 showing the rod 112 within the flex shell 166 with the outer comfort cover 156 placed in place. The flex shell 166 can be constructed of solid polyurethane, for example. In an exemplary embodiment, it can be formed by an extrusion or casting process with a hardness density of 40-80 Shear A durometer.

19A, 19B, 19C, and 19D show cross-sections of bendable pole 102 with various core 172 profiles and showing rods 112 within the core. The cross-sections may be in the middle of the bendable pole 102, such as through line 17-17 shown in FIG. 17A, or on either side of the middle grip 108. A cross-section through the middle of the bendable pole 102 may be in the middle of the middle grip 108 as shown in FIG. 1, for example. The bendable pole 102 has a core 172 around which a mesh 174 is disposed. A sheath 176 is disposed around the woven mesh 174. A comfort cover 156 may be disposed on the outside of the sheath 176. The mesh 174 may be a woven material. Exemplary mesh 174 materials include PET (polyethylene terephthalate) netting material, BoPET (biaxially oriented polyethylene terephthalate), also known as mylar®, or other polyester films made from PET. The sheath 176 can be, for example, a PVC layer that can be transparent or opaque. Design elements can be introduced onto the bendable pole 102 by using decorative mesh 174 or other design attributes that are visible through the transparent sheath 176. Informational material and branding can also be provided within the sheath 176. The sheath 176 can be shrink-wrapped onto the mesh 174.

Figure 19A shows a six-sided bendable pole 102 having six rods 112 within the core 172. Figure 19B shows a five-sided bendable pole 102 having five rods 112 within the core 172. Figure 19C shows a four-sided bendable pole 102 having four rods 112 within the core 172. Figure 19D shows a three-sided bendable pole having three rods 112 within the core 172. In each of these exemplary embodiments, the rods 112 substantially fill the core 172.

20A shows the gymnastics apparatus 400 with the rods 112 housed in a cassette 402. FIG. 20B is a cross-sectional view of the gymnastics apparatus 400 through line 20B-20B in FIG. 20C. The cassette 402 includes a plurality of cores 404 into which the rods 112 can be inserted or removed. In an exemplary embodiment, the rods 112 can be inserted or removed by the user. In a further embodiment, the rods 112 are permanently fixed within the cassette 402. Additionally, the gymnastics apparatus 400 may be disassembled by the user for storage or transportation. As shown in FIG. 21, a storage/transport bag 406 may be provided. A comfort cover 156 may be placed around the cassette 402 and may also extend over additional portions of the gymnastics apparatus 400. It should be noted that various features of the gymnastics apparatus 100 described herein may be part of the gymnastics apparatus 400. The main difference between gymnastics apparatus 100 and gymnastics apparatus 400 is that the rod 112 of gymnastics apparatus 400 is housed in a cassette 402. Therefore, all components described with respect to gymnastics apparatus 100 can be implemented in gymnastics apparatus 100 if they are compatible with the cassette configuration.

In an exemplary embodiment, the cassette 402 can hold up to eight rods 112 within the core 404, which can be configured as a cylindrical opening. In an exemplary embodiment, the rods 112 are 5/16 inch diameter rods that can be configured, for example, of FRP. The cassette 402 can be, for example, bendable polyurethane or other flexible plastic material.

The gymnastics apparatus 400 has a cassette port cover 410 that covers the opening of the core 404 to hold the rod 112. The cassette port cover 410 may be configured in any manner that holds the rod 112 within the core 404, and may be removably attached or adjustable if user modification of the rod is available.

In an exemplary embodiment, the actuation force level can be modified by inserting no rods 112 or one to eight rods 112 into the cassette 402, which modifies the actuation force level from approximately 80 to 100 pounds of force to bend the HD or HDX through a standard range of motion equivalent to bending into a 24 inch opening of a u-shaped bendable pole. The particular diameter and material of the rods 112 will affect the force achieved.

The cassette 402 may be attached to a gripper end shaft 408. The gripper end shaft 408 fits through a cassette shaft opening 412. In an exemplary embodiment, the gripper end shaft may be 3/8 inch diameter stainless steel. Other materials having suitable strength and ability to be securely attached to adjacent components may be used.

22A-22E show a portion of gymnastics apparatus 500 having a spring 502 within bendable pole 102 to further urge bendable pole 102 against the user and move the ends of the gymnastics apparatus toward each other. Gymnastics apparatus 500 can have any of the features described with respect to gymnastics apparatus 100. The main difference between gymnastics apparatus 100 and gymnastics apparatus 500 is that the means for generating various bending forces in gymnastics apparatus 500 includes spring 502. Thus, all components described with respect to gymnastics apparatus 100 can be implemented in gymnastics apparatus 100 if they are compatible with the spring mechanism.

Figure 22A shows a cross-sectional view of gymnastics apparatus 500. Figure 22B shows the locations of cross-sectional views 22C-22C and 22D-22D. Figure 22C is a cross-sectional view through line 22C-22C, and Figure 22D is a cross-sectional view through line 22D-22D. Figure 22E shows an exemplary spring 502, in this view, a sine wave spring.

In an exemplary embodiment, the bendable pole 102 has one or more springs 502 disposed longitudinally along the bendable pole 102. A spring spline 504 contains the springs 502, with the peaks of the sinusoidal springs disposed within the grooves of the spring spline 504. A tube 506 is disposed around the spring spline 504. The tube 506 may be, for example, a heat shrink material such as PVC. In an exemplary embodiment, the tube 506 covers the entire length of the gymnastics apparatus 100. The spring spline 504 holds the springs 502 in a general orientation around the bar and provides a relaxed fit for each spring. If there are four springs, three are not under tension during bending, and only the springs on or near the outside of the bend exert tension during bending. One spring buckles slightly toward the inside, while the springs on the sides of the bend bend without creating surface tension.

In the exemplary embodiment, a single rod 112 extends into the tube 504 such that the spring 502 is disposed between the rod 112 and the tube 504. A bushing 508 resides in the tube 516 between the rod 112 and the spring attachment 510. A set screw 512 is attached to the spring 502 and engages with threads on the spring attachment 510. A sleeve 514 covers the spring attachment 510, all or a portion of the set screw 512, the bushing 508, and a portion of the spring 502 and rod 112. A comfort cover 156 may be disposed over the sleeve 514.

The spring mounting component 510 has notches shaped to match the steps of the spring waveform that hold the spring 502 in place to create surface tension at the notches in the bend.

As the set screw 512 is tightened by moving towards the bushing 508 within the spring attachment 510, the cumulative surface tension of the springs 502 increases. This increases the baseline arc bending force. If all springs 502 have the same tension value, the primary arc bending force of the bendable pole 102 is equal regardless of the position of the end grips 104A, 104B in the user's grip. Only the springs that are directed towards the outside of the primary arc bending during bending contribute to the force range of the bendable pole 102. The surface tension of the springs 102 along the outside of the arc bending adds to the force of the single rod 112.

In an exemplary embodiment, the bendable pole 102 includes four springs 502. The user can experience up to four distinctly different actuation force levels by rotating the grips 104A, 104B within the grips. The user can feel the difference in actuation force levels by rotating the bendable pole in approximately 90° increments. The rotation does not have to be in exact 90° increments to experience the difference. If the bendable pole 102 includes two substantially equal springs 502 at a low actuation force, spaced 180° apart, and two equal springs 502 at a high actuation force in the remaining grooves, the bendable pole 102 will have two very different actuation force levels when rotated every 90°. The greater the difference in spring forces, the greater the difference in force felt by the user when bending the pole.

Figures 23A-23E show gymnastics apparatus 500 in which spring 502 is a music wire spring as shown in Figure 23E. It should be noted that spring 502 is not limited to either a sinusoidal or musical wire spring, but may be other elastic components that provide a surface tension compatible with the gymnastics apparatus and its intended use. Figure 23A shows a cross-sectional view of gymnastics apparatus 500. Figure 23B shows the location of cross-sectional views 23C-23C and 23D-23D. Figure 23C shows a cross-sectional view through line 23C-23C. Figure 23D shows a cross-sectional view through line 23D-23D. Figure 23E shows an exemplary spring 502 in the form of a music wire spring. The general components and operation of gymnastics apparatus 500 shown in Figures 23A, 23B, 23C, and 23D are similar to that shown in Figures 22A, 22B, 22C, and 22D, except that spring 502 is a music wire spring instead of a sine wave spring.

26A and 26B show an embodiment of the gymnastics apparatus 100 that can be separated into two or more pieces for compact storage and transportation. The particular embodiment shown in FIG. 26A separates the bendable pole 102 into two sections 130A, 130B that are in the center of the bendable pole 102. FIG. 26B shows a close-up of the attachment mechanism. The bendable pole sections 130A, 130B may be threaded together, for example, by a bayonet or ½ turn insertion and twist with a spring lock pin, or by a twist collet in the outer bending tube. In an exemplary embodiment, the bendable pole sections 130A, 130B have a first fitting 132 and a second fitting 134 that together provide, for example, a bayonet connection or a threaded connection. Any connection mechanism that is durable enough to withstand bending of the bendable pole 102 and that can be releasably connected can be used. The connection must also not interfere with the use and comfort of use of the gymnastics apparatus 100.

27 shows a further embodiment of gymnastics apparatus 100 having a releasably attachable bendable pole 102. Bendable pole 102 has two sections 130A, 130B that connect via a flexible tube 136, preferably of substantially equal flexural modulus. Flexible tube 136 allows for adjustable length sliding with a torsion lock to hold the length position. Bendable pole sections 130A, 130B are connected to an internal expansion collet. Flexible tube 136 can have reinforcing collars 138A, 138B. In an exemplary embodiment, flexible tube reinforcing collars 138A, 138B comprise reinforced PVC tubing, such as spiral reinforced tubing having a thickness of approximately 3.175 mm (1/8 inch).

As shown in FIG. 28, the bendable pole 102 may have three sections: bendable pole sections 140A, 140B, and a flexible tube 136. The bendable pole sections 140A, 140B each comprise a first segment 140A ₁ , 140B ₁ and a second segment 140A ₂ , 140B _2. The flexible tube 136 engages the bendable pole segments 140A ₂ , 140B ₂ at each of its ends, allowing slidable adjustment at each of their positions. The bendable pole segments 140A ₁ and 140A ₂ are releasably connected to each other. The bendable pole segments 140B ₁ and 140B ₂ are releasably connected to each other. Thus, there are three releasably connected regions that are releasably connected at points 142A and 142B to form the bendable pole 102.

In a further exemplary embodiment, gymnastics apparatus 100 is configured as a single element that provides a similar range of motion and actuation force levels.

The spacer may be a molded plastic or copolymer extrusion with seven passages sized to accommodate six rods in a hexagonal pattern, including an optional center seventh passage location.

For example, one or more of the following features may be incorporated into the gymnastics equipment:
Wireless personal fitness tracking via mobile app;
IMU (Inertial Measurement Unit) motion sensor (tracks acceleration, velocity and position as part of interactive programs for exercises, acceleration and position);
Strain gauge sensors (bending measurement) (tracks actuation force, degree of bending and provides power usage or calories burned),
LED light, light indication (providing prompts, tone, feedback to app programs, supporting external audio devices, or synchronizing with external devices (cell phone apps, headsets, or other bending bars));
RF (Bluetooth module) for data synchronization,
A speaker (providing music or recorded program prompts).

Gymnastics apparatus 100 may provide safety advantages over other gymnastics apparatus. For example, end grips 104 provide cushioned ends that may be safer than rigid end pieces of gymnastics apparatus 100. The composition of end grips 104 provides a safety element, for example, when constructed from a urethane integral skin exterior to resist penetration from the outside or inside. A soft shock absorbing interior foam area increases safety by being designed to reduce the possibility of accidental or intentional injury to the user or other person's head or other body areas or property in the vicinity of use. This allows for use of gymnastics apparatus 100 in close group classes.

The end grips 104 are configured to remain fixed to the bendable pole 102 during use and even misuse, thereby avoiding exposure of hard or sharp objects inside. The securely attached end grips 104 allow for added dynamic use of the pole by imparting torque potential from end to end. This adds character and quality to the variety of ways the gymnastics apparatus 100 can be used in many individual or group settings.

Additional safety features may include the spacer or other covering being impermeable, non-toxic, and having the ability to be disinfected with strong cleaning or disinfecting solutions without significant long-term degradation in a commercial, high-use fitness club or school gym environment.

Various embodiments of the invention have been described, each having a different combination of elements. The invention is not limited to the specific embodiments disclosed, and may include different combinations of the disclosed elements, omission of some elements, or substitution of equivalent elements of such structures. Each of the gymnastics apparatus 100, 400, 500 may include any combination of various elements, such as end grips, middle grips, different materials, electronics, and other layers or components that may be applied to any of these embodiments. The gymnastics apparatus 100, 400, 500 differ primarily in that the gymnastics apparatus 400 has a cassette configuration to impart bending and elastic properties, while the gymnastics apparatus 500 has one or more springs for that purpose. The gymnastics apparatus 100, as described with the rod 112 or hollow core, may also have any combination of the various elements described herein.

Although the present invention has been described with reference to exemplary embodiments, additional advantages and modifications will occur to those skilled in the art. Thus, the present invention in its broader aspects is not limited to the specific details shown and described herein. Changes, for example, to dimensions and materials, and the incorporation of equivalent components, may be made without departing from the spirit and scope of the present invention. Thus, the present invention is not limited to the specific exemplary embodiments, but is intended to be construed within the full spirit and scope of the appended claims and their equivalents.
The present invention has the following aspects (configurations).
[Aspect 1]
A gymnastics apparatus comprising:
a bendable pole having a resilient mechanism;
a first end grip disposed at a first end of the bendable pole;
a second end grip disposed at a second end of the bendable pole;
a middle gripping portion disposed at a central portion of the bendable pole;
Gymnastics equipment equipped with
[Aspect 2]
2. The gymnastics apparatus of claim 1, wherein the bendable pole comprises a plurality of flexible rods housed within the bendable pole.
[Aspect 3]
3. The gymnastics apparatus of claim 2, further comprising spacers for spacing the flexible rods apart.
[Aspect 4]
The bendable pole comprises:
a spline having a groove and disposed within the bendable pole;
one or more springs disposed within the groove;
2. The gymnastics apparatus of claim 1, comprising:
[Aspect 5]
2. The gymnastics apparatus of claim 1, wherein the bendable pole comprises a cassette that houses a plurality of flexible rods.
[Aspect 6]
3. The gymnastics apparatus of claim 2, wherein the flexible rods are slidable relative to adjacent components to accommodate relative movement of the flexible rods when the bendable pole is bent.
[Aspect 7]
3. The gymnastics apparatus of claim 2, wherein the plurality of flexible rods maintain engagement with the first end grip and the second end grip when the bendable pole is bent.
[Aspect 8]
2. The gymnastics apparatus of claim 1, wherein at least a portion of the intermediate grip is adjustably attached to the bendable pole.
[Aspect 9]
2. The gymnastics apparatus of claim 1, wherein one or more of the first end gripping portion, the second end gripping portion, and the intermediate gripping portion have a hollow interior region configured to accommodate electronic equipment.
[Aspect 10]
10. The gymnastics apparatus of aspect 9, further comprising a lighting portion and/or a sound portion.
[Aspect 11]
2. The gymnastics apparatus of aspect 1, further comprising sensors for obtaining or providing one or more of health-related data, gymnastics and position-related information, calories burned, and other gymnastics-related information.
[Aspect 12]
12. The gymnastics apparatus of aspect 11, comprising one or more sensors for measuring a user's exercise volume and peak exertion force.
[Aspect 13]
13. The gymnastics apparatus of claim 12, wherein the sensor is in the form of a conductive plastic material.
[Aspect 14]
14. The gymnastics apparatus of claim 13, wherein one or both of the plurality of end grips comprises said conductive plastic material.
[Aspect 15]
2. The gymnastics apparatus of claim 1, further comprising a motorized massage assembly.
[Aspect 16]
and an electronic accessory that cooperates with the downloadable mobile software application;
The electronic accessory includes:
a sensor for converting mechanical force into a variable voltage representative of an amount of physical manipulation force applied by a user, said variable voltage generating a proportional signal;
A software application having executable code for carrying out a method, the method comprising:
receiving the proportional signal;
converting said proportional signal into an equivalent bending force;
and displaying or storing said equivalent bending force.
The gymnastics apparatus according to aspect 1,
[Aspect 17]
17. The gymnastics apparatus of claim 16, wherein the method further comprises the step of calibrating body manipulation forces for the gymnastics apparatus in use.
[Aspect 18]
17. The gymnastics apparatus of aspect 16, wherein the electronic appendage tracks one or more of maximum actuation force, time per cycle, average time over time, total time, and number of repetitions.
[Aspect 19]
A non-transitory computer readable medium containing software instructions for performing a method, the method comprising:
receiving a signal from a sensor for converting a mechanical force into a variable voltage representative of an amount of physical manipulation force exerted by a user of the gymnastics apparatus, said variable voltage producing a proportional signal;
converting said proportional signal into an equivalent bending force;
and displaying or storing the equivalent bending force.

Claims (15)

A gymnastics apparatus comprising:
a resiliently bendable pole having an asymmetric core thereby providing an asymmetric bending action arc force ;
a first end grip disposed on a first end of the resiliently bendable pole;
a second end grip disposed at a second end of the resiliently bendable pole;
a middle gripping portion disposed at a central portion of the resiliently bendable pole;
Equipped with
The gymnastics apparatus , wherein the asymmetric core includes an X-shaped elliptical core within the asymmetric core . The gymnastics apparatus of claim 1 , wherein the resiliently bendable pole comprises a plurality of flexible rods housed within the asymmetric core . The gymnastics apparatus of claim 2 , further comprising spacers spacing the flexible rods apart. 3. The gymnastics apparatus of claim 2, wherein the flexible rods are slidable relative to adjacent components to accommodate relative movement of the flexible rods when the resiliently bendable pole is bent. The gymnastics apparatus of claim 2 , wherein the plurality of flexible rods maintain engagement with the first end grip and the second end grip when the resiliently bendable pole is bent. The gymnastics apparatus of claim 1 , wherein at least a portion of the intermediate gripping portion is adjustably attached to the resiliently bendable pole. The gymnastics apparatus of claim 1, wherein one or more of the first end grip, the second end grip, and the intermediate grip have a hollow interior region configured to accommodate electronic equipment. 8. Gymnastics apparatus according to claim 7 , further comprising a lighting portion and/or a sound portion. The gymnastics apparatus of claim 1 , further comprising sensors for obtaining or providing one or more of health-related data, motion and position information, calories burned, and other gymnastics-related information. 10. The gymnastics apparatus of claim 9 , further comprising one or more sensors for measuring a user's exercise volume and peak exertion force. 11. The gymnastics apparatus of claim 10 , wherein the sensor is in the form of a conductive plastic material as part of one or both of the first and second end grips. The gymnastics apparatus of claim 1 further comprising a motorized massage assembly. and an electronic accessory that cooperates with the downloadable mobile software application;
The electronic accessory includes:
a sensor for converting mechanical force into a variable voltage representative of an amount of physical manipulation force applied by a user, said variable voltage generating a proportional signal;
A software application having executable code for carrying out a method, comprising:
The method comprises:
receiving the proportional signal;
converting said proportional signal into an equivalent bending force;
and displaying or storing said equivalent bending force.
The gymnastics apparatus of claim 1 , comprising : 14. The gymnastics apparatus of claim 13 , wherein the method further comprises the step of calibrating body manipulation forces for the gymnastics apparatus during use. 14. The gymnastics apparatus of claim 13 , wherein the electronic appendage tracks one or more of maximum actuation force, time per cycle, average time over time, total time, and number of repetitions.

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